The circuit presented here is a work-alike circuit that
combines some
modern refinements with more easily obtained components in
order to get
as close as possible to the classic, bombastic sounds of
the 1970's
A/DA Flanger.

January
2010 - Here is the new rev5 of the MN3007 version
of the A/DA
flanger clone circuit. The most noticable addition is
probably the
LT1054 based charge pump circuit that will enable the
circuit to be
powered from a standard tip negative +9VDC power supply,
just like most
other stompboxes. There is also some clarification on the
appropriate
frequency range to be set when calibrating the finished
unit.

Click on the pictures below to download full size images.

NOTE -
The trim pot installed in the perfboard area in the lower
left
corner of the PCB is for setting the output volume.

Jan 2009 -
This is an A/DA flanger circuit like the previous PCBs I
have offered in the past, but it has been reworked to
replace the
SAD1024 (which has become nearly impossible to find) with
a MN3007 (or
NTE1641). There are a couple of threads over at
diystompboxes with the
details of how the retrofit was worked out.

All of the work on this retrofit was really done by
oldschoolanalog. He
sent me a little daughterboard with a MN3007 and I tried
it out in the
A/DA circuit that I built for myself? sounds fantastic.
Slightly
different than with the SAD1024, but the incredible sweep
width and
unique character are both all there. Here?s a picture of
my ADA build
with oldschoolanalog?s MN3007 daughterboard plugged in
place of the
SAD1024?